2016 yaris sedan Cruise control

[CTScott]

The A21 pin being missing on the 2016 may mean that the Mexico market ECM does not support cruise control.

Traction control requires support of both the ECM and the ABS ECU, so it can not be added without changing those (and making sure that all of the supporting sensors are present).

[Eduardo_mty]

Originally Posted by CTScott

The A21 pin being missing on the 2016 may mean that the Mexico market ECM does not support cruise control.

Then if i do that you do in your 34 pages manual (section 3), i cant get Cruise control

[CTScott]

Originally Posted by Eduardo_mty

Then if i do that you do in your 34 pages manual (section 3), i cant get Cruise control

For the US Market Yaris that is true. I have not had experience with adding cruise to Mexico market Yaris, so we will find out with your work.

To test it, you can remove the rubber plug from that pin hole and stick a small piece of wire in from the back of the connector. If you measure the voltage on that wire with the ignition switch in the ON position you will see +12 V on that pin, if your car supports cruise control.